Pneumatic apparatus for transferring material.



0, J. VAN DOREN. PNEUMATIC APPARATUS FOR TRANQPERRING MATERIAL.APPLICATION FILED APR.1B, 1912.

1,125,413, Patented Jan.19,1915.

CHESTER J. VAN DOREN, OF GHANUTE, KANSAS.

PNEUMATIC APPARATUS FOR TRANSFERRING- MATERIAL.

Specification of Letters Patent.

Patented J an. 19, 31910.

' Application filed April 18, 1912. Serial No. 891,758.

To all whom it may concern:

Be it known. that I, CHESTER J. VA DOREN, a citizen of the UnitedStates, residing at Chanute, in the county of N eosho and State ofKansas, have invented certain new and useful Improvements in PneumaticApparatus for Transferring Material, of which the following is aspecification.

My invention relates to improvements in pneumatic apparatus fortransferring material, such for instance, as cement, gypsum, slack coal,etc., and my object is to provide apparatus of this character wherebymaterial may be economically and rapidly transferred from one point toanother without loss or the discharge of dust into the surroundingatmosphere.

The apparatus embodies means for creating and economically maintaining acontinuous circulation of air between the points where the material istaken up and discharged, and in order that the invention may .be fullyunderstood, reference will now be made to the accompanying drawing, inwhich:

Figure 1 is a brokenside elevation partly in section of my improvedapparatus, and

Fig. 2 is a reduced plan view of a collector employed in carrying outthe invention.

In carrying out the invention I employ a collector 1, which taperstoward its lower end and has an outlet 2 communicating with a spiralconveyor 3, whereby uniform discharge of material from said collector isassured. I

4 designates a-fiexible suction-head communicating with a suction pipe 5leading to a fan or other current creating device 6, having a dischargepipe 7 leading therefrom to the upper portion of the collector 1, at oneside of which it enters, as shown on Fig. 2, to give the dischargedmaterial a whirling motion.

8 designates a flexible discharge head surrounding the suction-hea-d 4,below which it slightly extends and has an upturned margin 9 fordirecting its blast upward and into the suction-head 4. Discharge-head 8com municates with a return-pipe 10 leading from the central upperportion of the collector 1. The heads 4 and 8 being flexible,automatically accommodate themselves to the diminishing pile of materialA, upon which they rest.

Operation: In practice a continuous circulation of air is maintainedbetween the heads 4 and 8 and collector 1, through the intermediacy ofthe suction-pipe 5, fan 6,

wiischarge-pipe 7, and the return-pipe 10,

and as this current at no time discharges into the atmosphere, itwillbe' comparatively easy to maintain and there will be no loss ofmaterial or escape of dust from said material. The suction-head 9 islowered into the material, which acts as a seal against the discharge ofair from said head into the atmosphere. The suction created in head 4draws up the material which passes into the fan-casing 11 from thesuction-pipe 5 and is discharged into the collector 1, which having noopening into the atmosphere, prevents the escape of the lighterparticles of the material into the atmosphere. As the material isdischarged into the collector 1, the bulk thereof settles down into saidcollector and is drawn ofl by the conveyer 3,

the material in the conveyor and the collector serving to seal theoutlet 2 against the escape of air current, whichreturns to usefulapparatus for transferring material in bulk economically, without lossof material, and without filling the surrounding atmosphere with thedust or lighter particles of said material.

Having thus described my invention what I claim and desire to secure byLetters Patent, is:

In an apparatus of the character described. a flexible suction-head, anda flexible discharge-head surrounding said suctionhead and provided withan upturned marginal flange directed toward the suctionhead.

In testimony whereof I aflix my signature, in the presence of twowitnesses.

CHESTER J. VAN DOREN.

Witngsssm LA J. 0 UER, G. DORENTE.

